Hello,
There are three main things you can try when searching for LabVIEW instrument drivers. First, you can contact the manufacturers of your hardware to see if they have any LabVIEW drivers available. Next, you can do a web search (I prefer www.google.com) for your instrument name with LabVIEW...an example search would be "DTR-8 LabVIEW" (without the quotes) to see if anything comes up for that particular instrument. If neither of these suggestions work, you can always develop your own instrument driver, and you can find several resources for doing this at www.ni.com/idnet.
I hope these suggestions help. Good luck with your application, and have a pleasant day.
Sincerely,
Darren N.
NI Applications Engineer